ChimneyRx Masonry Fireplace Chimney Water Repellent - 1 Gallon

ChimneyRx Masonry Chimney Water Repellent is a modified siloxane based product specifically designed for chimneys to penetrate deeply in to most masonry and concrete pores. Unlike acrylics, silicones, and other waterproofing sealers that form a film on the surface and trap water vapors, ChimneyRx masonry waterproofing products allow deep penetration of the active ingredients of up to 1/4 inch or more. As a result, the special siloxanes in ChimneyRx Masonry Chimney Water Repellent react to form strong chemical bonds beneath a treated surface. These bonds allow the product to become a physical part of the structure and provide long-lasting water repellent protection without altering the appearance of the brick.

ChimneyRx Masonry Chimney Water Repellent is 100% vapor permeable, which allows the water vapors to escape. This reduces costly chimney repair such as spalling, scaling, deterioration, and freeze-thaw damage that results from trapped moisture when film-forming water sealers are used. The best way to prevent chimney water damage is by using chimney repair products such as ChimneyRx penetrating (non film-forming) water repellents that will allow vapors to pass through.

Additional Information:

• Prevents Water Penetration
• Keep Masonry Looking New
• Will Not Alter Surface Appearance
• Mildew/Fungus Resistant
• Water-Based, Environmentally Friendly

Coverage Rates

View Product Data Sheet

• 1 Gallon
• Easily cleans up with soap and water
• 40° F Minimum application temperature
• Dries in 1-2 hours (allow 6 hours before rainfall)
• Easily applied with pump sprayer or airless sprayer
• Brick: covers 95-150 sq. ft., block: covers 50-75 sq. ft., concrete, stucco, adobe, and limestone: covers 75-150 sq. ft.